<template>
  <div id="app">
    <keepAlive>
      <router-view v-if="$route.meta.keepAlive"/>
    </keepAlive>
    <router-view v-if="!$route.meta.keepAlive"/>
  </div>
</template>
<style>
* {
  margin: 0;
  padding: 0;
}
</style>